WebSVN – EngineBay2 – Blame – /trunk/Src/main.c

Rev	Author	Line No.	Line
2	mjames	1	/**
20	mjames	2	******************************************************************************
		3	* File Name : main.c
		4	* Description : Main program body
		5	******************************************************************************
		6	*
		7	* COPYRIGHT(c) 2017 STMicroelectronics
		8	*
		9	* Redistribution and use in source and binary forms, with or without modification,
		10	* are permitted provided that the following conditions are met:
		11	* 1. Redistributions of source code must retain the above copyright notice,
		12	* this list of conditions and the following disclaimer.
		13	* 2. Redistributions in binary form must reproduce the above copyright notice,
		14	* this list of conditions and the following disclaimer in the documentation
		15	* and/or other materials provided with the distribution.
		16	* 3. Neither the name of STMicroelectronics nor the names of its contributors
		17	* may be used to endorse or promote products derived from this software
		18	* without specific prior written permission.
		19	*
		20	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
		21	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
		22	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
		23	* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
		24	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
		25	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
		26	* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
		27	* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
		28	* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
		29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
		30	*
		31	******************************************************************************
		32	*/
2	mjames	33	/* Includes ------------------------------------------------------------------*/
		34	#include "stm32l1xx_hal.h"
		35
		36	/* USER CODE BEGIN Includes */
7	mjames	37	#include "serial.h"
9	mjames	38	#include "plx.h"
		39	#include "misc.h"
2	mjames	40	/* USER CODE END Includes */
		41
		42	/* Private variables ---------------------------------------------------------*/
		43	ADC_HandleTypeDef hadc;
6	mjames	44	DMA_HandleTypeDef hdma_adc;
2	mjames	45
		46	SPI_HandleTypeDef hspi1;
		47
		48	TIM_HandleTypeDef htim2;
		49	TIM_HandleTypeDef htim6;
		50
		51	UART_HandleTypeDef huart1;
6	mjames	52	UART_HandleTypeDef huart2;
2	mjames	53
		54	/* USER CODE BEGIN PV */
		55	/* Private variables ---------------------------------------------------------*/
		56
9	mjames	57	// with a dwell angle of 45 degrees , 4 cylinders and a maximum RPM of 5000
		58	// freq = 5000/60 * 2 = 166Hz. Because the breaker might bounce , we accept the first pulse longer than 1/300 of a second as being a proper closure .
		59	// the TIM2 counter counts in 10uS increments,
		60	#define BREAKER_MIN (RPM_COUNT_RATE/300)
		61
21	mjames	62	#define STARTER_LIMIT 5
		63
9	mjames	64	volatile char TimerFlag = 0;
		65
		66	volatile char NoSerialInCTR = 0; // Missing characters coming in on USART1
		67	volatile char NoSerialIn = 0;
		68
8	mjames	69	// storage for ADC
19	mjames	70	uint16_t ADC_Samples[6];
8	mjames	71
17	mjames	72	#define Scale 1024.0
		73	const float ADC_Scale = 3.3 / (Scale * 4096.0); // convert to a voltage
		74
19	mjames	75	uint32_t FILT_Samples[6]; // filtered ADC samples * 1024
9	mjames	76	// Rev counter processing from original RevCounter Project
		77	unsigned int RPM_Diff = 0;
		78	unsigned int RPM_Count_Latch = 0;
		79	// accumulators
		80	unsigned int RPM_Pulsecount = 0;
		81	unsigned int RPM_FilteredWidth = 0;
		82
		83	unsigned int Coded_RPM = 0;
		84	unsigned int Coded_CHT = 0;
		85
18	mjames	86	uint32_t Power_CHT_Timer;
		87
21	mjames	88	uint16_t Starter_Debounce = 0;
		89
2	mjames	90	/* USER CODE END PV */
		91
		92	/* Private function prototypes -----------------------------------------------*/
		93	void SystemClock_Config(void);
		94	void Error_Handler(void);
		95	static void MX_GPIO_Init(void);
6	mjames	96	static void MX_DMA_Init(void);
2	mjames	97	static void MX_ADC_Init(void);
		98	static void MX_SPI1_Init(void);
		99	static void MX_TIM2_Init(void);
		100	static void MX_TIM6_Init(void);
13	mjames	101	static void MX_USART2_UART_Init(void);
2	mjames	102	static void MX_USART1_UART_Init(void);
		103
		104	/* USER CODE BEGIN PFP */
		105	/* Private function prototypes -----------------------------------------------*/
		106
9	mjames	107	/* USER CODE END PFP */
7	mjames	108
9	mjames	109	/* USER CODE BEGIN 0 */
7	mjames	110
19	mjames	111	void plx_sendword(int x)
		112	{
9	mjames	113	PutCharSerial(&uc1, ((x) >> 6) & 0x3F);
		114	PutCharSerial(&uc1, (x) & 0x3F);
		115	}
2	mjames	116
17	mjames	117	void init_ADC_filter()
		118	{
		119	int i;
19	mjames	120	for (i = 0; i < 6; i++)
		121	{
17	mjames	122	FILT_Samples[i] = 0;
19	mjames	123	}
17	mjames	124	}
		125
		126	void filter_ADC_samples()
		127	{
19	mjames	128	int i;
		129	for (i = 0; i < 6; i++)
		130	{
		131	FILT_Samples[i] += (ADC_Samples[i] * Scale - FILT_Samples[i]) / 2;
		132	}
17	mjames	133	}
		134
19	mjames	135	void ProcessRPM(int instance)
		136	{
9	mjames	137	// compute the timer values
		138	// snapshot timers
		139	unsigned long RPM_Pulsewidth;
		140	unsigned long RPM_Count_Val;
		141	__disable_irq(); // copy the counter value
		142	RPM_Count_Val = RPM_Count;
		143	__enable_irq();
		144	// do calculations
		145	// if there is only one entry, cannot get difference
19	mjames	146	if (RPM_Count_Latch != RPM_Count_Val)
		147	{
		148	while (1)
		149	{
9	mjames	150	unsigned int base_time;
		151	unsigned int new_time;
		152	// if we are at N-1, stop.
		153	unsigned int next_count = RPM_Count_Latch + 1;
19	mjames	154	if (next_count == RPM_SAMPLES)
		155	{
9	mjames	156	next_count = 0;
		157	}
19	mjames	158	if (next_count == RPM_Count_Val)
		159	{
9	mjames	160	break;
		161	}
		162	base_time = RPM_Time[RPM_Count_Latch];
		163	new_time = RPM_Time[next_count];
		164	RPM_Count_Latch = next_count;
19	mjames	165	if (new_time > base_time)
		166	{
9	mjames	167	RPM_Pulsewidth = new_time - base_time; // not wrapped
19	mjames	168	}
		169	else
		170	{
13	mjames	171	RPM_Pulsewidth = new_time - base_time + 65536; // deal with wrapping
9	mjames	172	}
2	mjames	173
9	mjames	174	RPM_Diff += RPM_Pulsewidth;
		175	// need to check if this is a long pulse. If it is, keep the answer
19	mjames	176	if (RPM_Pulsewidth > BREAKER_MIN)
		177	{
9	mjames	178	RPM_Pulsecount++; // count one pulse
		179	RPM_FilteredWidth += RPM_Diff; // add its width to the accumulator
		180	RPM_Diff = 0; // reset accumulator of all the narrow widths
		181	}
		182	}
		183
		184	}
		185
19	mjames	186	if (RPM_Pulsecount > 0)
		187	{
9	mjames	188	// now have time for N pulses in clocks
		189	// need to scale by 19.55: one unit is 19.55 RPM
		190	// 1Hz is 60 RPM
17	mjames	191	float new_RPM = (30.0 / 19.55 * RPM_Pulsecount * RPM_COUNT_RATE)
19	mjames	192	/ (RPM_FilteredWidth) + 0.5;
17	mjames	193
19	mjames	194	Coded_RPM += (new_RPM * Scale - Coded_RPM) / 4;
17	mjames	195
9	mjames	196	#if !defined MY_DEBUG
		197	// reset here unless we want to debug
		198	RPM_Pulsecount = 0;
		199	RPM_FilteredWidth = 0;
		200	#endif
		201	}
		202
17	mjames	203	// send the current RPM *calculation
9	mjames	204	plx_sendword(PLX_RPM);
		205	PutCharSerial(&uc1, instance);
19	mjames	206	plx_sendword(Coded_RPM / Scale);
9	mjames	207	}
		208
		209	// this uses a MAX6675 which is a simple 16 bit read
		210	// SPI is configured for 8 bits so I can use an OLED display if I need it
11	mjames	211	// must wait > 0.22 seconds between conversion attempts as this is the measurement time
		212	//
18	mjames	213
21	mjames	214	FunctionalState CHT_Enable = ENABLE;
18	mjames	215
19	mjames	216	uint8_t CHT_Timer[2] =
		217	{ 0, 0 }; // two temperature readings
21	mjames	218	uint16_t CHT_Observations[2] =
19	mjames	219	{ 0, 0 };
		220
		221	void ProcessCHT(int instance)
		222	{
9	mjames	223	uint8_t buffer[2];
18	mjames	224	if (instance > 2)
		225	return;
		226	CHT_Timer[instance]++;
21	mjames	227	if ((CHT_Enable == ENABLE) && (CHT_Timer[instance] >= 4)) // every 300 milliseconds
19	mjames	228	{
11	mjames	229
18	mjames	230	CHT_Timer[instance] = 0;
11	mjames	231
18	mjames	232	uint16_t Pin = (instance == 0) ? SPI_NS_Temp_Pin : SPI_NS_Temp2_Pin;
9	mjames	233
18	mjames	234	HAL_GPIO_WritePin(SPI_NS_Temp_GPIO_Port, Pin, GPIO_PIN_RESET);
9	mjames	235
18	mjames	236	HAL_SPI_Receive(&hspi1, buffer, 2, 2);
9	mjames	237
18	mjames	238	HAL_GPIO_WritePin(SPI_NS_Temp_GPIO_Port, Pin, GPIO_PIN_SET);
9	mjames	239
18	mjames	240	uint16_t obs = (buffer[0] << 8) \| buffer[1];
9	mjames	241
18	mjames	242	uint8_t good = (obs & 4) == 0;
21	mjames	243
		244
		245
19	mjames	246	if (good)
		247	{
		248	CHT_Observations[instance] = obs >> 5;
18	mjames	249	}
11	mjames	250	}
		251
16	mjames	252	plx_sendword(PLX_X_CHT);
9	mjames	253	PutCharSerial(&uc1, instance);
19	mjames	254	plx_sendword(CHT_Observations[instance]);
9	mjames	255
		256	}
		257
21	mjames	258	void EnableCHT(FunctionalState state)
		259
19	mjames	260	{
20	mjames	261	GPIO_InitTypeDef GPIO_InitStruct;
19	mjames	262
		263	CHT_Enable = state;
20	mjames	264
21	mjames	265
20	mjames	266	/* enable SPI in live mode : assume it and its GPIOs are already initialised in SPI mode */
21	mjames	267	if (state == ENABLE)
20	mjames	268	{
21	mjames	269	HAL_GPIO_WritePin(ENA_AUX_5V_GPIO_Port, ENA_AUX_5V_Pin, GPIO_PIN_SET );
20	mjames	270	HAL_GPIO_WritePin(SPI_NS_Temp_GPIO_Port, SPI_NS_Temp_Pin, GPIO_PIN_SET);
		271	HAL_GPIO_WritePin(SPI_NS_Temp2_GPIO_Port, SPI_NS_Temp2_Pin,
		272	GPIO_PIN_SET);
		273
		274	/* put the SPI pins back into SPI AF mode */
		275	GPIO_InitStruct.Pin = SPI1_MOSI_Pin \| SPI1_MISO_Pin \| SPI1_SCK_Pin;
		276	GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
		277	GPIO_InitStruct.Pull = GPIO_NOPULL;
		278	GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
		279	GPIO_InitStruct.Alternate = GPIO_AF5_SPI1;
		280	HAL_GPIO_Init(SPI1_SCK_GPIO_Port, &GPIO_InitStruct);
		281
		282	}
		283	else
		284	{
		285	/* Power down the SPI interface taking signals all low */
21	mjames	286	HAL_GPIO_WritePin(ENA_AUX_5V_GPIO_Port, ENA_AUX_5V_Pin, GPIO_PIN_RESET );
20	mjames	287	HAL_GPIO_WritePin(SPI_NS_Temp_GPIO_Port, SPI_NS_Temp_Pin,
		288	GPIO_PIN_RESET);
		289	HAL_GPIO_WritePin(SPI_NS_Temp2_GPIO_Port, SPI_NS_Temp2_Pin,
		290	GPIO_PIN_RESET);
		291
		292	HAL_GPIO_WritePin(SPI1_SCK_GPIO_Port,
		293	SPI1_MOSI_Pin \| SPI1_MISO_Pin \| SPI1_SCK_Pin, GPIO_PIN_RESET);
		294
		295	/* put the SPI pins back into GPIO mode */
		296	GPIO_InitStruct.Pin = SPI1_MOSI_Pin \| SPI1_MISO_Pin \| SPI1_SCK_Pin;
		297	GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
		298	GPIO_InitStruct.Pull = GPIO_NOPULL;
		299	GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
		300	HAL_GPIO_Init(SPI1_SCK_GPIO_Port, &GPIO_InitStruct);
		301
		302	}
		303
19	mjames	304	}
		305
17	mjames	306	// 1023 is 20.00 volts.
19	mjames	307	void ProcessBatteryVoltage(int instance)
		308	{
18	mjames	309	float reading = FILT_Samples[instance] * ADC_Scale;
		310	reading = reading * 7.8125; // real voltage
		311	reading = reading * 51.15; // 1023/20
17	mjames	312
12	mjames	313	plx_sendword(PLX_Volts);
		314	PutCharSerial(&uc1, instance);
18	mjames	315	plx_sendword((uint16_t) reading);
12	mjames	316
18	mjames	317	}
12	mjames	318
18	mjames	319	/****!
		320	* @brief this reads the reference voltage within the STM32L151
		321	* Powers up reference voltage and temperature sensor, waits 3mS and takes reading
		322	* Requires that the ADC be powered up
		323	*/
12	mjames	324
18	mjames	325	uint32_t ADC_VREF_MV = 3300; // 3.300V typical
		326	const uint16_t STM32REF_MV = 1224; // 1.224V typical
		327
19	mjames	328	void CalibrateADC(void)
		329	{
21	mjames	330	uint32_t adc_val = FILT_Samples[5]; // as set up in device config
18	mjames	331	ADC_VREF_MV = (STM32REF_MV * 4096) / adc_val;
12	mjames	332	}
		333
19	mjames	334	void ProcessCPUTemperature(int instance)
		335	{
18	mjames	336	int32_t temp_val;
21	mjames	337	uint16_t TS_CAL30 = (uint16_t ) (0x1FF8007AUL); /* ADC reading for temperature sensor at 30 degrees C with Vref = 3000mV */
		338	uint16_t TS_CAL110 = (uint16_t ) (0x1FF8007EUL); /* ADC reading for temperature sensor at 110 degrees C with Vref = 3000mV */
18	mjames	339	/* get the ADC reading corresponding to ADC channel 16 after turning on the ADC */
		340
		341	temp_val = FILT_Samples[5];
		342
		343	/* renormalise temperature value to account for different ADC Vref : normalise to that which we would get for a 3000mV reference */
21	mjames	344	temp_val = temp_val * ADC_VREF_MV / (Scale * 3000UL);
18	mjames	345
		346	int32_t result = 800 * ((int32_t) temp_val - TS_CAL30);
		347	result = result / (TS_CAL110 - TS_CAL30) + 300;
		348
19	mjames	349	if (result < 0)
		350	{
		351	result = 0;
		352	}
18	mjames	353	plx_sendword(PLX_FluidTemp);
		354	PutCharSerial(&uc1, instance);
19	mjames	355	plx_sendword(result / 10);
18	mjames	356
		357	}
		358
17	mjames	359	// the MAP sensor is giving us a reading of
		360	// 4.6 volts for 1019mB or 2.27 volts at the ADC input (resistive divider by 2.016)
		361	// I believe the sensor reads 4.5V at 1000kPa and 0.5V at 0kPa
12	mjames	362
17	mjames	363	void ProcessMAP(int instance)
		364	{
		365	// Using ADC_Samples[3] as the MAP input
19	mjames	366	float reading = FILT_Samples[3] * ADC_Scale;
		367	reading = reading * 2.016; // real voltage
		368	reading = (reading) * 1000 / 4.5; // do not assume 0.5 volt offset : reading from 0 to 4.5 instead of 0.5 to 4.5
17	mjames	369	plx_sendword(PLX_MAP);
		370	PutCharSerial(&uc1, instance);
19	mjames	371	plx_sendword((uint16_t) reading);
17	mjames	372
		373	}
		374
		375	// the Oil pressi sensor is giving us a reading of
		376	// 4.5 volts for 100 PSI or 2.25 volts at the ADC input (resistive divider by 2.016)
		377	// I believe the sensor reads 4.5V at 100PSI and 0.5V at 0PSI
		378	// an observation of 1024 is 200PSI, so observation of 512 is 100 PSI.
		379
		380	void ProcessOilPress(int instance)
		381	{
		382	// Using ADC_Samples[2] as the MAP input
19	mjames	383	float reading = FILT_Samples[2] * ADC_Scale;
		384	reading = reading * 2.00; // real voltage
		385	reading = (reading - 0.5) * 512 / 4; // this is 1023 * 100/200
17	mjames	386
		387	plx_sendword(PLX_FluidPressure);
		388	PutCharSerial(&uc1, instance);
19	mjames	389	plx_sendword((uint16_t) reading);
17	mjames	390
		391	}
		392
16	mjames	393	void ProcessTiming(int instance)
		394	{
		395	plx_sendword(PLX_Timing);
		396	PutCharSerial(&uc1, instance);
19	mjames	397	plx_sendword(64 - 15); // make it negative
16	mjames	398	}
		399
2	mjames	400	/* USER CODE END 0 */
		401
19	mjames	402	int main(void)
		403	{
2	mjames	404
20	mjames	405	/* USER CODE BEGIN 1 */
2	mjames	406
20	mjames	407	/* USER CODE END 1 */
2	mjames	408
20	mjames	409	/* MCU Configuration----------------------------------------------------------*/
2	mjames	410
20	mjames	411	/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
		412	HAL_Init();
2	mjames	413
20	mjames	414	/* Configure the system clock */
		415	SystemClock_Config();
2	mjames	416
20	mjames	417	/* Initialize all configured peripherals */
		418	MX_GPIO_Init();
		419	MX_DMA_Init();
		420	MX_ADC_Init();
		421	MX_SPI1_Init();
		422	MX_TIM2_Init();
		423	MX_TIM6_Init();
		424	MX_USART2_UART_Init();
		425	MX_USART1_UART_Init();
2	mjames	426
20	mjames	427	/* USER CODE BEGIN 2 */
13	mjames	428	HAL_MspInit();
2	mjames	429
13	mjames	430	// Not using HAL USART code
9	mjames	431	__HAL_RCC_USART1_CLK_ENABLE()
		432	; // PLX comms port
		433	__HAL_RCC_USART2_CLK_ENABLE()
		434	; // Debug comms port
7	mjames	435	/* setup the USART control blocks */
		436	init_usart_ctl(&uc1, huart1.Instance);
		437	init_usart_ctl(&uc2, huart2.Instance);
		438
		439	EnableSerialRxInterrupt(&uc1);
		440	EnableSerialRxInterrupt(&uc2);
		441
13	mjames	442	HAL_SPI_MspInit(&hspi1);
		443
		444	HAL_ADC_MspInit(&hadc);
14	mjames	445
13	mjames	446	HAL_ADC_Start_DMA(&hadc, ADC_Samples, 6);
		447
18	mjames	448	HAL_ADC_Start_IT(&hadc);
13	mjames	449
		450	HAL_TIM_Base_MspInit(&htim6);
9	mjames	451	HAL_TIM_Base_Start_IT(&htim6);
13	mjames	452
		453	// initialise all the STMCubeMX stuff
		454	HAL_TIM_Base_MspInit(&htim2);
		455	// Start the counter
12	mjames	456	HAL_TIM_Base_Start(&htim2);
13	mjames	457	// Start the input capture and the interrupt
18	mjames	458	HAL_TIM_IC_Start_IT(&htim2, TIM_CHANNEL_1);
8	mjames	459
17	mjames	460	init_ADC_filter();
7	mjames	461
18	mjames	462	uint32_t Ticks = HAL_GetTick() + 100;
		463	int CalCounter = 0;
2	mjames	464
18	mjames	465	Power_CHT_Timer = HAL_GetTick() + 10000; /* wait 10 seconds before powering up the CHT sensor */
		466
		467
20	mjames	468
		469
		470	/* USER CODE END 2 */
		471
		472	/* Infinite loop */
		473	/* USER CODE BEGIN WHILE */
19	mjames	474	while (1)
		475	{
20	mjames	476	/* USER CODE END WHILE */
2	mjames	477
20	mjames	478	/* USER CODE BEGIN 3 */
2	mjames	479
19	mjames	480	if (HAL_GetTick() > Ticks)
		481	{
18	mjames	482	Ticks += 100;
		483	filter_ADC_samples();
		484	// delay to calibrate ADC
21	mjames	485	if (CalCounter < 1000)
19	mjames	486	{
18	mjames	487	CalCounter += 100;
9	mjames	488	}
		489
21	mjames	490	if (CalCounter == 900)
19	mjames	491	{
18	mjames	492	CalibrateADC();
		493	}
19	mjames	494	}
		495	/* when the starter motor is on then power down the CHT sensors as they seem to fail */
9	mjames	496
19	mjames	497	if (HAL_GPIO_ReadPin(STARTER_ON_GPIO_Port, STARTER_ON_Pin)
21	mjames	498	== GPIO_PIN_RESET )
19	mjames	499	{
21	mjames	500	if(Starter_Debounce < STARTER_LIMIT)
		501	{
		502	Starter_Debounce++;
		503	}
		504	}
		505	else
		506	{
		507	if(Starter_Debounce > 0)
		508	{
		509	Starter_Debounce --;
		510	}
		511	}
		512
		513	if (Starter_Debounce == STARTER_LIMIT)
		514	{
		515	EnableCHT(DISABLE);
20	mjames	516	Power_CHT_Timer = HAL_GetTick() + 5000;
19	mjames	517	}
		518	else
		519	/* if the Power_CHT_Timer is set then wait for it to timeout, then power up CHT */
		520	{
		521	if ((Power_CHT_Timer > 0) && (HAL_GetTick() > Power_CHT_Timer))
18	mjames	522	{
21	mjames	523	EnableCHT(ENABLE);
19	mjames	524	Power_CHT_Timer = 0;
18	mjames	525	}
19	mjames	526	}
13	mjames	527
19	mjames	528	// check to see if we have any incoming data, copy and append if so, if no data then create our own frames.
		529	int c;
		530	char send = 0;
13	mjames	531
19	mjames	532	// poll the input for a stop bit or timeout
		533	if (PollSerial(&uc1))
		534	{
		535	c = GetCharSerial(&uc1);
		536	if (c != PLX_Stop)
		537	{
		538	PutCharSerial(&uc1, c); // echo all but the stop bit
18	mjames	539	}
19	mjames	540	else
		541	{ // must be a stop character
		542	send = 1; // start our sending process.
		543	}
		544	}
16	mjames	545
19	mjames	546	// sort out auto-sending
		547	if (TimerFlag)
		548	{
		549	TimerFlag = 0;
		550	if (NoSerialIn)
		551	{
		552	PutCharSerial(&uc1, PLX_Start);
		553	send = 1;
18	mjames	554	}
19	mjames	555	}
		556	if (send)
		557	{
		558	send = 0;
18	mjames	559
19	mjames	560	uint16_t val;
		561	val = __HAL_TIM_GET_COMPARE(&htim2,TIM_CHANNEL_1);
		562	PutCharSerial(&uc2, (val & 31) + 32);
18	mjames	563
19	mjames	564	// send the observations
		565	ProcessRPM(0);
		566	ProcessCHT(0);
18	mjames	567	// ProcessCHT(1);
19	mjames	568	ProcessBatteryVoltage(0); // Batt 1
		569	ProcessBatteryVoltage(1); // Batt 2
		570	ProcessCPUTemperature(0); // built in temperature sensor
18	mjames	571
19	mjames	572	ProcessMAP(0);
		573	ProcessOilPress(0);
18	mjames	574
19	mjames	575	PutCharSerial(&uc1, PLX_Stop);
9	mjames	576	}
		577	}
20	mjames	578	/* USER CODE END 3 */
		579
2	mjames	580	}
20	mjames	581
2	mjames	582	/** System Clock Configuration
20	mjames	583	*/
2	mjames	584	void SystemClock_Config(void)
		585	{
		586
20	mjames	587	RCC_OscInitTypeDef RCC_OscInitStruct;
		588	RCC_ClkInitTypeDef RCC_ClkInitStruct;
2	mjames	589
20	mjames	590	__HAL_RCC_PWR_CLK_ENABLE();
2	mjames	591
20	mjames	592	__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
2	mjames	593
20	mjames	594	RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
		595	RCC_OscInitStruct.HSIState = RCC_HSI_ON;
		596	RCC_OscInitStruct.HSICalibrationValue = 16;
		597	RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
		598	RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
		599	RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL6;
		600	RCC_OscInitStruct.PLL.PLLDIV = RCC_PLL_DIV3;
		601	if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
		602	{
		603	Error_Handler();
		604	}
2	mjames	605
20	mjames	606	RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK\|RCC_CLOCKTYPE_SYSCLK
		607	\|RCC_CLOCKTYPE_PCLK1\|RCC_CLOCKTYPE_PCLK2;
		608	RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
		609	RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
		610	RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
		611	RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
		612	if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK)
		613	{
		614	Error_Handler();
		615	}
2	mjames	616
20	mjames	617	HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
2	mjames	618
20	mjames	619	HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
2	mjames	620
20	mjames	621	/* SysTick_IRQn interrupt configuration */
		622	HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
2	mjames	623	}
		624
		625	/* ADC init function */
		626	static void MX_ADC_Init(void)
		627	{
		628
20	mjames	629	ADC_ChannelConfTypeDef sConfig;
2	mjames	630
20	mjames	631	/**Configure the global features of the ADC (Clock, Resolution, Data Alignment and number of conversion)
		632	*/
		633	hadc.Instance = ADC1;
		634	hadc.Init.ClockPrescaler = ADC_CLOCK_ASYNC_DIV1;
		635	hadc.Init.Resolution = ADC_RESOLUTION_12B;
		636	hadc.Init.DataAlign = ADC_DATAALIGN_RIGHT;
		637	hadc.Init.ScanConvMode = ADC_SCAN_ENABLE;
		638	hadc.Init.EOCSelection = ADC_EOC_SEQ_CONV;
		639	hadc.Init.LowPowerAutoWait = ADC_AUTOWAIT_DISABLE;
		640	hadc.Init.LowPowerAutoPowerOff = ADC_AUTOPOWEROFF_DISABLE;
		641	hadc.Init.ChannelsBank = ADC_CHANNELS_BANK_A;
		642	hadc.Init.ContinuousConvMode = DISABLE;
		643	hadc.Init.NbrOfConversion = 6;
		644	hadc.Init.DiscontinuousConvMode = DISABLE;
		645	hadc.Init.ExternalTrigConv = ADC_EXTERNALTRIGCONV_T6_TRGO;
		646	hadc.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_RISING;
		647	hadc.Init.DMAContinuousRequests = ENABLE;
		648	if (HAL_ADC_Init(&hadc) != HAL_OK)
		649	{
		650	Error_Handler();
		651	}
2	mjames	652
20	mjames	653	/**Configure for the selected ADC regular channel its corresponding rank in the sequencer and its sample time.
		654	*/
		655	sConfig.Channel = ADC_CHANNEL_10;
		656	sConfig.Rank = 1;
		657	sConfig.SamplingTime = ADC_SAMPLETIME_384CYCLES;
		658	if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
		659	{
		660	Error_Handler();
		661	}
2	mjames	662
20	mjames	663	/**Configure for the selected ADC regular channel its corresponding rank in the sequencer and its sample time.
		664	*/
		665	sConfig.Channel = ADC_CHANNEL_11;
		666	sConfig.Rank = 2;
		667	if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
		668	{
		669	Error_Handler();
		670	}
2	mjames	671
20	mjames	672	/**Configure for the selected ADC regular channel its corresponding rank in the sequencer and its sample time.
		673	*/
		674	sConfig.Channel = ADC_CHANNEL_12;
		675	sConfig.Rank = 3;
		676	if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
		677	{
		678	Error_Handler();
		679	}
2	mjames	680
20	mjames	681	/**Configure for the selected ADC regular channel its corresponding rank in the sequencer and its sample time.
		682	*/
		683	sConfig.Channel = ADC_CHANNEL_13;
		684	sConfig.Rank = 4;
		685	if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
		686	{
		687	Error_Handler();
		688	}
2	mjames	689
20	mjames	690	/**Configure for the selected ADC regular channel its corresponding rank in the sequencer and its sample time.
		691	*/
		692	sConfig.Channel = ADC_CHANNEL_TEMPSENSOR;
		693	sConfig.Rank = 5;
		694	if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
		695	{
		696	Error_Handler();
		697	}
2	mjames	698
20	mjames	699	/**Configure for the selected ADC regular channel its corresponding rank in the sequencer and its sample time.
		700	*/
		701	sConfig.Channel = ADC_CHANNEL_VREFINT;
		702	sConfig.Rank = 6;
		703	if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
		704	{
		705	Error_Handler();
		706	}
2	mjames	707
		708	}
		709
		710	/* SPI1 init function */
		711	static void MX_SPI1_Init(void)
		712	{
		713
20	mjames	714	hspi1.Instance = SPI1;
		715	hspi1.Init.Mode = SPI_MODE_MASTER;
		716	hspi1.Init.Direction = SPI_DIRECTION_2LINES;
		717	hspi1.Init.DataSize = SPI_DATASIZE_8BIT;
		718	hspi1.Init.CLKPolarity = SPI_POLARITY_LOW;
21	mjames	719	hspi1.Init.CLKPhase = SPI_PHASE_1EDGE;
20	mjames	720	hspi1.Init.NSS = SPI_NSS_SOFT;
		721	hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_64;
		722	hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
		723	hspi1.Init.TIMode = SPI_TIMODE_DISABLE;
		724	hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
		725	hspi1.Init.CRCPolynomial = 10;
		726	if (HAL_SPI_Init(&hspi1) != HAL_OK)
		727	{
		728	Error_Handler();
		729	}
2	mjames	730
		731	}
		732
		733	/* TIM2 init function */
		734	static void MX_TIM2_Init(void)
		735	{
		736
20	mjames	737	TIM_ClockConfigTypeDef sClockSourceConfig;
		738	TIM_MasterConfigTypeDef sMasterConfig;
		739	TIM_IC_InitTypeDef sConfigIC;
2	mjames	740
20	mjames	741	htim2.Instance = TIM2;
		742	htim2.Init.Prescaler = 320;
		743	htim2.Init.CounterMode = TIM_COUNTERMODE_UP;
		744	htim2.Init.Period = 65535;
		745	htim2.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
		746	if (HAL_TIM_Base_Init(&htim2) != HAL_OK)
		747	{
		748	Error_Handler();
		749	}
12	mjames	750
20	mjames	751	sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
		752	if (HAL_TIM_ConfigClockSource(&htim2, &sClockSourceConfig) != HAL_OK)
		753	{
		754	Error_Handler();
		755	}
12	mjames	756
20	mjames	757	if (HAL_TIM_IC_Init(&htim2) != HAL_OK)
		758	{
		759	Error_Handler();
		760	}
2	mjames	761
20	mjames	762	sMasterConfig.MasterOutputTrigger = TIM_TRGO_UPDATE;
		763	sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
		764	if (HAL_TIMEx_MasterConfigSynchronization(&htim2, &sMasterConfig) != HAL_OK)
		765	{
		766	Error_Handler();
		767	}
2	mjames	768
20	mjames	769	sConfigIC.ICPolarity = TIM_INPUTCHANNELPOLARITY_RISING;
		770	sConfigIC.ICSelection = TIM_ICSELECTION_DIRECTTI;
		771	sConfigIC.ICPrescaler = TIM_ICPSC_DIV1;
		772	sConfigIC.ICFilter = 0;
		773	if (HAL_TIM_IC_ConfigChannel(&htim2, &sConfigIC, TIM_CHANNEL_1) != HAL_OK)
		774	{
		775	Error_Handler();
		776	}
2	mjames	777
		778	}
		779
		780	/* TIM6 init function */
		781	static void MX_TIM6_Init(void)
		782	{
		783
20	mjames	784	TIM_MasterConfigTypeDef sMasterConfig;
2	mjames	785
20	mjames	786	htim6.Instance = TIM6;
		787	htim6.Init.Prescaler = 320;
		788	htim6.Init.CounterMode = TIM_COUNTERMODE_UP;
		789	htim6.Init.Period = 9999;
		790	if (HAL_TIM_Base_Init(&htim6) != HAL_OK)
		791	{
		792	Error_Handler();
		793	}
2	mjames	794
20	mjames	795	sMasterConfig.MasterOutputTrigger = TIM_TRGO_UPDATE;
		796	sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
		797	if (HAL_TIMEx_MasterConfigSynchronization(&htim6, &sMasterConfig) != HAL_OK)
		798	{
		799	Error_Handler();
		800	}
2	mjames	801
		802	}
		803
		804	/* USART1 init function */
		805	static void MX_USART1_UART_Init(void)
		806	{
		807
20	mjames	808	huart1.Instance = USART1;
		809	huart1.Init.BaudRate = 19200;
		810	huart1.Init.WordLength = UART_WORDLENGTH_8B;
		811	huart1.Init.StopBits = UART_STOPBITS_1;
		812	huart1.Init.Parity = UART_PARITY_NONE;
		813	huart1.Init.Mode = UART_MODE_TX_RX;
		814	huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
		815	huart1.Init.OverSampling = UART_OVERSAMPLING_16;
		816	if (HAL_UART_Init(&huart1) != HAL_OK)
		817	{
		818	Error_Handler();
		819	}
2	mjames	820
		821	}
		822
6	mjames	823	/* USART2 init function */
		824	static void MX_USART2_UART_Init(void)
		825	{
		826
20	mjames	827	huart2.Instance = USART2;
		828	huart2.Init.BaudRate = 115200;
		829	huart2.Init.WordLength = UART_WORDLENGTH_8B;
		830	huart2.Init.StopBits = UART_STOPBITS_1;
		831	huart2.Init.Parity = UART_PARITY_NONE;
		832	huart2.Init.Mode = UART_MODE_TX_RX;
		833	huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
		834	huart2.Init.OverSampling = UART_OVERSAMPLING_16;
		835	if (HAL_UART_Init(&huart2) != HAL_OK)
		836	{
		837	Error_Handler();
		838	}
6	mjames	839
		840	}
		841
		842	/**
20	mjames	843	* Enable DMA controller clock
		844	*/
		845	static void MX_DMA_Init(void)
6	mjames	846	{
20	mjames	847	/* DMA controller clock enable */
		848	__HAL_RCC_DMA1_CLK_ENABLE();
6	mjames	849
20	mjames	850	/* DMA interrupt init */
		851	/* DMA1_Channel1_IRQn interrupt configuration */
		852	HAL_NVIC_SetPriority(DMA1_Channel1_IRQn, 0, 0);
		853	HAL_NVIC_EnableIRQ(DMA1_Channel1_IRQn);
6	mjames	854
		855	}
		856
2	mjames	857	/** Configure pins as
20	mjames	858	* Analog
		859	* Input
		860	* Output
		861	* EVENT_OUT
		862	* EXTI
		863	* Free pins are configured automatically as Analog (this feature is enabled through
		864	* the Code Generation settings)
		865	*/
2	mjames	866	static void MX_GPIO_Init(void)
		867	{
		868
20	mjames	869	GPIO_InitTypeDef GPIO_InitStruct;
2	mjames	870
20	mjames	871	/* GPIO Ports Clock Enable */
		872	__HAL_RCC_GPIOC_CLK_ENABLE();
		873	__HAL_RCC_GPIOH_CLK_ENABLE();
		874	__HAL_RCC_GPIOA_CLK_ENABLE();
		875	__HAL_RCC_GPIOB_CLK_ENABLE();
		876	__HAL_RCC_GPIOD_CLK_ENABLE();
2	mjames	877
20	mjames	878	/*Configure GPIO pins : PC13 PC14 PC15 PC6
		879	PC7 PC8 PC9 PC11
		880	PC12 */
		881	GPIO_InitStruct.Pin = GPIO_PIN_13\|GPIO_PIN_14\|GPIO_PIN_15\|GPIO_PIN_6
		882	\|GPIO_PIN_7\|GPIO_PIN_8\|GPIO_PIN_9\|GPIO_PIN_11
		883	\|GPIO_PIN_12;
		884	GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
		885	GPIO_InitStruct.Pull = GPIO_NOPULL;
		886	HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
2	mjames	887
20	mjames	888	/Configure GPIO pins : PH0 PH1 /
		889	GPIO_InitStruct.Pin = GPIO_PIN_0\|GPIO_PIN_1;
		890	GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
		891	GPIO_InitStruct.Pull = GPIO_NOPULL;
		892	HAL_GPIO_Init(GPIOH, &GPIO_InitStruct);
3	mjames	893
20	mjames	894	/*Configure GPIO pins : PA0 PA1 PA8 PA11
		895	PA12 */
		896	GPIO_InitStruct.Pin = GPIO_PIN_0\|GPIO_PIN_1\|GPIO_PIN_8\|GPIO_PIN_11
		897	\|GPIO_PIN_12;
		898	GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
		899	GPIO_InitStruct.Pull = GPIO_NOPULL;
		900	HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
6	mjames	901
20	mjames	902	/Configure GPIO pin : LED_Blink_Pin /
		903	GPIO_InitStruct.Pin = LED_Blink_Pin;
		904	GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
		905	GPIO_InitStruct.Pull = GPIO_NOPULL;
		906	GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
		907	HAL_GPIO_Init(LED_Blink_GPIO_Port, &GPIO_InitStruct);
2	mjames	908
20	mjames	909	/Configure GPIO pins : SPI_NSS1_Pin SPI1CD_Pin /
		910	GPIO_InitStruct.Pin = SPI_NSS1_Pin\|SPI1CD_Pin;
		911	GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
		912	GPIO_InitStruct.Pull = GPIO_NOPULL;
		913	GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
		914	HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
3	mjames	915
20	mjames	916	/Configure GPIO pins : SPI_RESET_Pin SPI_NS_Temp_Pin SPI_NS_Temp2_Pin ENA_AUX_5V_Pin /
		917	GPIO_InitStruct.Pin = SPI_RESET_Pin\|SPI_NS_Temp_Pin\|SPI_NS_Temp2_Pin\|ENA_AUX_5V_Pin;
		918	GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
		919	GPIO_InitStruct.Pull = GPIO_NOPULL;
		920	GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
		921	HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
3	mjames	922
20	mjames	923	/*Configure GPIO pins : PB11 PB12 PB13 PB14
		924	PB15 PB3 PB4 PB5
		925	PB6 PB7 PB8 PB9 */
		926	GPIO_InitStruct.Pin = GPIO_PIN_11\|GPIO_PIN_12\|GPIO_PIN_13\|GPIO_PIN_14
		927	\|GPIO_PIN_15\|GPIO_PIN_3\|GPIO_PIN_4\|GPIO_PIN_5
		928	\|GPIO_PIN_6\|GPIO_PIN_7\|GPIO_PIN_8\|GPIO_PIN_9;
		929	GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
		930	GPIO_InitStruct.Pull = GPIO_NOPULL;
		931	HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
5	mjames	932
20	mjames	933	/Configure GPIO pin : STARTER_ON_Pin /
		934	GPIO_InitStruct.Pin = STARTER_ON_Pin;
		935	GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
		936	GPIO_InitStruct.Pull = GPIO_NOPULL;
		937	HAL_GPIO_Init(STARTER_ON_GPIO_Port, &GPIO_InitStruct);
18	mjames	938
20	mjames	939	/Configure GPIO pin : PD2 /
		940	GPIO_InitStruct.Pin = GPIO_PIN_2;
		941	GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
		942	GPIO_InitStruct.Pull = GPIO_NOPULL;
		943	HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
5	mjames	944
20	mjames	945	/Configure GPIO pin Output Level /
		946	HAL_GPIO_WritePin(LED_Blink_GPIO_Port, LED_Blink_Pin, GPIO_PIN_RESET);
5	mjames	947
20	mjames	948	/Configure GPIO pin Output Level /
		949	HAL_GPIO_WritePin(SPI_NSS1_GPIO_Port, SPI_NSS1_Pin, GPIO_PIN_SET);
5	mjames	950
20	mjames	951	/Configure GPIO pin Output Level /
		952	HAL_GPIO_WritePin(SPI1CD_GPIO_Port, SPI1CD_Pin, GPIO_PIN_RESET);
7	mjames	953
20	mjames	954	/Configure GPIO pin Output Level /
		955	HAL_GPIO_WritePin(GPIOB, SPI_RESET_Pin\|SPI_NS_Temp2_Pin\|ENA_AUX_5V_Pin, GPIO_PIN_RESET);
5	mjames	956
20	mjames	957	/Configure GPIO pin Output Level /
		958	HAL_GPIO_WritePin(SPI_NS_Temp_GPIO_Port, SPI_NS_Temp_Pin, GPIO_PIN_SET);
7	mjames	959
2	mjames	960	}
		961
		962	/* USER CODE BEGIN 4 */
		963
		964	/* USER CODE END 4 */
		965
		966	/**
20	mjames	967	* @brief This function is executed in case of error occurrence.
		968	* @param None
		969	* @retval None
		970	*/
2	mjames	971	void Error_Handler(void)
		972	{
20	mjames	973	/* USER CODE BEGIN Error_Handler */
9	mjames	974	/* User can add his own implementation to report the HAL error return state */
19	mjames	975	while (1)
		976	{
9	mjames	977	}
20	mjames	978	/* USER CODE END Error_Handler */
2	mjames	979	}
		980
		981	#ifdef USE_FULL_ASSERT
		982
		983	/**
20	mjames	984	* @brief Reports the name of the source file and the source line number
		985	* where the assert_param error has occurred.
		986	* @param file: pointer to the source file name
		987	* @param line: assert_param error line source number
		988	* @retval None
		989	*/
2	mjames	990	void assert_failed(uint8_t* file, uint32_t line)
		991	{
20	mjames	992	/* USER CODE BEGIN 6 */
9	mjames	993	/* User can add his own implementation to report the file name and line number,
		994	ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
20	mjames	995	/* USER CODE END 6 */
2	mjames	996
		997	}
		998
		999	#endif
		1000
		1001	/**
20	mjames	1002	* @}
		1003	*/
2	mjames	1004
		1005	/**
20	mjames	1006	* @}
		1007	*/
2	mjames	1008
		1009	/********************** (C) COPYRIGHT STMicroelectronics *END OF FILE**/

Subversion Repositories EngineBay2

(root)/trunk/Src/main.c – Rev 21